MMV - Dimensional Measuring Gauge for Round Parts

MMV – Dimensional Measuring Gauge for Round Parts

Measuring gauge with v-blocks.

The Kentucky Gauge MMV Digital Measuring Gauge is designed to simplify the quality control process of measuring overall part dimensions. The MMV functions similarly to digital calipers, but features a more robust construction and integrated v-blocks to make measuring round parts much more user friendly. Additionally, a rigid support stand is included with optional casters for portability.

Utilizing our high-resolution, non-contact linear encoder, we can achieve unmatched accuracy and reliability.

Ready to put Kentucky Gauge to work for you?

Key Features

Non-Contact and Wear-Free Linear Encoder

Non-Contact and Wear-Free Linear Encoder

Our encoders use magnetic sending technology, so they work without contact and ensure a virtually wear-free and maintenance-free operation. This ensures high-accuracy measurements for a lifetime.

Unlike rotary encoders, there are no moving parts. All the mechanical components found in rotary encoders (flange, shaft, bearings, etc.) are not needed, which eliminates mechanical failures and deficiencies.


Absolute LCD Digital Readout

The MMT digital readout features a high-vis LCD display with multi-point compensation to to provide maximum accuracy and absolute precision.

Features include:

  • Inch or mm display
  • Simulated absolute encoder functionality to ensure you do not lose positional information when the readout is powered off.
  • Swivel mount to ensure visibility from all angles.
    5.7″ color TFT screen
  • Segmented linear error compensation for near perfect measurement accuracy
Quick and Simple Measurements with the Keyed V-Blocks

Quick and Simple Measurements with the Keyed V-Blocks

Our v-blocks are keyed to allow operators to quickly and easily adjust the supports for varying stock lengths. No tools required!

MMV Bearings

Maintenance-Free Roller Bearings

The MMV utilizes sealed roller bearings made from the highest quality stainless steel. The high-grade roller bearings ensure a smooth and precise carriage travel.

Made to last a lifetime, we have never had a roller bearing failure in over 20 years!

Customized to Fit Your Needs

Customized to Fit Your Needs

Need a custom jaw size? NO PROBLEM.
Need a custom fixture? NO PROBLEM.

You tell us what you need and dedicated production team will make it happen.



LCD digital readout with a display range from -999999 to 999999.

0.0002″, 0.005mm
System Repeatability

Overall system accuracy varies based on system length.

Multi-point compensation feature included to greatly improve system accuracy.

± 0.0002″ / 0.005mm
Jaw Size

Precision ground tool steel jaws for 0-6″ OD round parts.

Custom sizes are available!

Operating Temperature

Wide operating range with stable temperatures.

5°C – 45°C

Rugged protection that can be used in any shop environment or conditions.

Scale: IP67, Readout: IP54 (front)
Power Supply

Our standard readout features a universal power supply with an input range of 85-264 VAC and a frequency from 45-400 Hz.

Universal 85-264 VAC
Measuring Technology

Unlike capacitive technology, magnetoresistive technology is much more rugged and resistance to liquids, oils, and debris.

Measuring Range

Unlike our competitors, we’re not limited to a few standard sizes. We can build our systems to ANY length that you require.



Dimensional drawings are provided as a reference only. Due to customization options and ongoing updates, dimensions are subject to change without notice.

Manuals / Downloads

Due to the large selection of customization options, manuals are provided as general guidelines only. Supplemental material is provided for customized features.


Battery Powered Digital Readout

Battery Powered Digital Readout

The battery powered digital readout features a 7 segment LCD screen with optional RS232 port for SPC output.

Caster Wheels

Caster Wheels

The optional caster wheels enable you to transport the measuring system throughout your shop to ensure all phases of production are producing accurate parts.

V-Channel for Soft Materials

V-Channel for Soft Materials

The optional v-channel replaces the v-blocks and allows full support for soft and/or pliable materials that would otherwise droop between the v-block supports.

Customized to Fit Your Needs

Table Top Model

The table top model is offered with adjustable leveling feet. This model is perfect for customers that already have a dedicated table for measuring parts.